Fecha/hora: 16/06/2024 00:58:32

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 29/04/2015
Fecha de la última actualización: | 06/05/2015
Autoria: | NAVAJAS, E.; SAN JULIAN, R.; BRITO, G.; GIMENO, D.; GUTIERREZ-ZAMIT, E.; GOLDBERG, V.; CIAPPESONI, G.
Afiliación: | ELLY ANA NAVAJAS VALENTINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO SAN JULIAN SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO WALTER BRITO DIAZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DIEGO GIMENO, SUL (Secretariado Uruguayo de la Lana).; LUIS EMILIO GUTIERREZ ZAMIT, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VIRGINIA GOLDBERG BIANCHI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS GABRIEL CIAPPESONI SCARONE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Genetic evaluation of the Texel breed in Uruguay: II. Meat quality traits.
Año de publicación: | 2014
Fuente/Imprenta: | In: INTERNATIONAL CONGRESS OF MEAT SCIENCE AND TECHNOLOGY (ICoMST), 60., 2014, Punta del Este, Uruguay. Proceedings... Montevideo: INIA, 2014.
Páginas: | 4 p.
Idioma: | Inglés

Contenido:

ABSTRACT.

The present study reports preliminary estimates of heritabilities of meat quality traits and genetic correlation among them and with carcass quality based on data on 424 lambs of the Texel Central Progeny Testing in Uruguay. Moderate heritabilities were estimated for color parameters, Warner-Braztler shear force (WBSF), intramuscular fat content (IMF) and fatty acid profile (percentage of saturates, monounsaturated and polyunsaturated fatty acids). Genetic correlations between fat thickness by ultrasound and GR were positive and moderate between them and with IMF. In contrast, rib eye area, which is an indicator of carcass muscling, was negatively correlated with IMF. This meat quality trait is relevant given its association with eating quality traits and nutritional value of lamb meat. The correlation between IMF with WBSF was -0.29 indicating that leaner lamb meat will tend to be less tender. On the other hand, genetic correlations of IMF with fatty acids percentages suggest that lower contents of IMF will have higher proportions of "healthier" fatty acid. Genetic improvement for higher meat yield is possible given the genetic variability estimated, but these preliminary associations suggest the need to take into account simultaneously meat quality traits to avoid any unfavorable effects, due to correlated responses.

Thesagro: | CALIDAD DE CARNE; GANADO DE CARNE; TEXEL.
Categoría del tema: | L01 Ganadería
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/4407/1/Ciappesoni.-2-carne-Texel-ICoMST-2014.pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (100349-1) - INI - PC - DD - PP/ICOMST/2014 -  -  - DIS